Lembaran kerja Nilai makmal & elektrolit dengan jawapan

Which laboratory test is traditionally used to adjust a continuous infusion of unfractionated heparin?

1. AErythrocyte sedimentation rate (ESR)
2. BInternational normalized ratio (INR)
3. CActivated partial thromboplastin time (aPTT)
4. DPlatelet function assay (PFA-100 test)

Bagi orang yang tidak mengambil antikoagulan, INR lazimnya kira-kira:

1. A3.5–4.5
2. B5.0–6.0
3. C2.0–3.0
4. D0.8–1.2

What is the effect of insulin on serum potassium?

1. AIt makes the kidneys keep more potassium in the blood
2. BIt has no effect on potassium in any amount
3. CIt moves potassium into cells, lowering the serum level
4. DIt moves potassium out of cells, raising the serum level

A patient starts high-dose prednisone. Which laboratory change should the nurse expect?

1. AA rise in blood glucose
2. BA rise in serum potassium
3. CA fall in serum sodium
4. DA fall in the white cell count

Mengapakah kalsium keseluruhan yang rendah mesti ditafsir dengan berhati-hati pada pesakit dengan albumin serum yang rendah?

1. AAlbumin dan kalsium diukur dengan tindak balas kimia yang sama, maka ia sentiasa menurun bersama
2. BAlbumin rendah sentiasa menyebabkan hipokalsemia sebenar yang bergejala
3. CAlbumin rendah menjadikan setiap ujian kalsium tidak tepat dan tidak berguna
4. DBanyak kalsium terikat pada albumin, maka kalsium keseluruhan menurun walaupun kalsium terion normal

A tired patient with heavy menstrual periods has a normal hemoglobin and MCV but a ferritin of 8 ng/mL. What does this show?

1. AA completely normal iron status
2. BIron deficiency without anemia yet
3. CVitamin B₁₂ deficiency anemia
4. DIron overload from too much iron

A patient has sudden episodes of severe headache, sweating, palpitations and very high blood pressure. Which test is most useful to look for the cause?

1. ASerum TSH and free T₄
2. BPlasma free metanephrines
3. CFasting lipid profile
4. DSerum calcium only

In the first 24 hours after a major burn, which laboratory pattern is most expected?

1. ALow sodium and low hematocrit
2. BHigh calcium and high albumin
3. CLow potassium and low hematocrit
4. DHigh potassium and high hematocrit